Which slugger won MVP awards in both the National and American Leagues, the first to do so?

MLB's award for the best reliever in the National League is named after which pitcher? MLB's award for the best hitter in each league is named after which player? Which player was the first to hit 500 home runs? Which player was the first African American manager in MLB, hired by Cleveland in 1975? Which Tigers slugger missed years for military service and hit 58 home runs in 1938? Which Indians pitcher, nicknamed "Rapid Robert," led the league in strikeouts seven times? Which Red Sox slugger missed nearly five seasons serving as a pilot in World War II and Korea? Which Yankees player was nicknamed "Donnie Baseball"?